Restructuring of Nodes and Scenes. Added WorldCamera. Added a Main Scene.

Scenes/Map/visible_on_screen_notifier_2d.gd

@@ -0,0 +1,15 @@
+extends VisibleOnScreenNotifier2D
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	_calculateRect()
+	get_tree().root.size_changed.connect(_calculateRect)
+
+
+func _calculateRect():
+	var multiplier: float = get_viewport_rect().size.y / get_viewport_rect().size.x
+	var size: float = 640 / multiplier
+	
+	rect.position.y = -size/2
+	rect.size.y = size